<template>
  <view>
    <view class="uni-header">
      <view class="uni-group">
        <view class="uni-title"></view>
        <view class="uni-sub-title"></view>
      </view>
      <view class="uni-group">
        <input class="uni-search" type="text" v-model="query" @confirm="search" placeholder="请输入搜索内容" />
        <button class="uni-button" type="default" size="mini" @click="search">搜索</button>
        <button class="uni-button" type="default" size="mini" @click="navigateTo('./add?parent_id='+parentId)">新增</button>
        <button class="uni-button" type="default" size="mini" :disabled="!selectedIndexs.length" @click="delTable">批量删除</button>
        <download-excel class="hide-on-phone" :fields="exportExcel.fields" :data="exportExcelData" :type="exportExcel.type" :name="exportExcel.filename">
          <button class="uni-button" type="primary" size="mini">导出 Excel</button>
        </download-excel>
      </view>
    </view>
    <view class="uni-container">
      <unicloud-db ref="udb" :collection="collectionList" field="title,type,sort,parent_id,is_publish,audio,create_date,uid" :where="where" page-data="replace"
        :orderby="orderby" :getcount="true" :page-size="options.pageSize" :page-current="options.pageCurrent"
        v-slot:default="{data,pagination,loading,error,options}" :options="options" loadtime="manual" @load="onqueryload">
        <uni-table ref="table" :loading="loading" :emptyText="error.message || '没有更多数据'" border stripe type="selection" @selection-change="selectionChange">
          <uni-tr>
            <uni-th align="center" width="400" filter-type="search" @filter-change="filterChange($event, 'title')" sortable @sort-change="sortChange($event, 'title')">标题</uni-th>
            <uni-th align="center" sortable @sort-change="sortChange($event, 'is_publish')">发布</uni-th>
			 <uni-th align="center" sortable @sort-change="sortChange($event, 'uid')">播放</uni-th>
            <uni-th align="center" filter-type="timestamp" @filter-change="filterChange($event, 'create_date')" sortable @sort-change="sortChange($event, 'create_date')">创建时间</uni-th>
            <uni-th align="center" width="350">操作</uni-th>
          </uni-tr>
          <uni-tr v-for="(item,index) in data" :key="index">
            <uni-td align="left">{{item.title}}</uni-td>
            <uni-td align="center" v-if="item.is_publish==true"><text style="color:#00c296">已发布</text></uni-td>
			<uni-td align="center" v-else><text style="color:#999">--</text></uni-td>
			<uni-td align="center" style="cursor:pointer;" v-if="item.audio">
				<uni-icons type="icon-bofang2" v-if="isPlay == false || currentPlayIndex!=index" @click="setPlay(item,index,'play')" custom-prefix="iconfont" size="20" color="#00c296"></uni-icons>
				<uni-icons type="icon-weibiaoti519" v-if="isPlay == true && currentPlayIndex == index" @click="setPlay(item,index,'pause')" custom-prefix="iconfont" size="20" color="#00c296"></uni-icons>
			</uni-td>
			<uni-td align="center" style="cursor:pointer;" v-else>
				<uni-icons type="icon-bofang2" custom-prefix="iconfont" size="20" color="#eee"></uni-icons>
				
			</uni-td>
			
            <uni-td align="center">
              <uni-dateformat :threshold="[0, 0]" format="yyyy-MM-dd" :date="item.create_date"></uni-dateformat>
            </uni-td>
            <uni-td align="center">
              <view class="uni-group">
				  <button @click="download(item)" class="uni-button" size="mini" type="primary">下载</button>
				<button @click="navigateTo('./timbre?id='+item._id+'&parentId='+parentId, false)" class="uni-button" size="mini" type="primary">配音</button>
                <button @click="navigateTo('./edit?id='+item._id, false)" class="uni-button" size="mini" type="primary">修改</button>
                <button @click="confirmDelete(item._id)" class="uni-button" size="mini" type="warn">删除</button>
              </view>
            </uni-td>
          </uni-tr>
        </uni-table>
        <view class="uni-pagination-box">
          <uni-pagination show-icon :page-size="pagination.size" v-model="pagination.current" :total="pagination.count" @change="onPageChanged" />
        </view>
      </unicloud-db>
    </view>
  </view>
</template>

<script>
  import { enumConverter, filterToWhere } from '../../js_sdk/validator/timbre_title.js';

  const db = uniCloud.database()
  // 表查询配置
  const dbOrderBy = '' // 排序字段
  const dbSearchFields = [] // 模糊搜索字段，支持模糊搜索的字段列表。联表查询格式: 主表字段名.副表字段名，例如用户表关联角色表 role.role_name
  // 分页配置
  const pageSize = 20
  const pageCurrent = 1

  const orderByMapping = {
    "ascending": "asc",
    "descending": "desc"
  }

  export default {
    data() {
      return {
		  isPlay:false,
		  currentPlayIndex:null,
		  parentId:'',//父iD
        collectionList: [
			db.collection('timbre_title').orderBy('create_date desc').getTemp(),
			db.collection('uni-id-users').field('_id,nickname').getTemp()
		],
        query: '',
        where: '',
        orderby: dbOrderBy,
        orderByFieldName: "",
        selectedIndexs: [],
		innerAudioContext:null,
		audioItem:{},
        options: {
          pageSize,
          pageCurrent,
          filterData: {
            "type_localdata": [
              {
                "value": "title",
                "text": "title"
              },
              {
                "value": "chapter",
                "text": "chapter"
              }
            ]
          },
          ...enumConverter
        },
        imageStyles: {
          width: 64,
          height: 64
        },
        exportExcel: {
          "filename": "timbre_title.xls",
          "type": "xls",
          "fields": {
            "标题": "title",
            "type": "type",
            "排序": "sort",
            "父ID": "parent_id",
            "是否发布": "is_publish",
            "创建时间": "create_date",
            "创建人": "uid"
          }
        },
        exportExcelData: []
      }
    },
    onLoad(e) {
	this.parentId = e.id;
	 this.where = {
		 parent_id:e.id
	 }
      this._filter = {}
    },
    onReady() {
      this.$refs.udb.loadData()
    },
    methods: {
	 //下载
	 download(item){
		 window.open(item.audio, '_blank');
	 },
	 //设置播放音频
	 setPlay(item,index,act){
		 console.log('item',item);
	 	var that = this;
	 	if(index != this.currentPlayIndex){
	 		if(that.innerAudioContext){
	 			that.innerAudioContext.stop();
	 		}
	 		var innerAudioContext = uni.createInnerAudioContext();
	 		this.innerAudioContext = innerAudioContext;
	 		this.audioItem = item;
	 		innerAudioContext.src = item.audio;
	 		innerAudioContext.autoplay = true;
	 	}else{
	 		var innerAudioContext = this.innerAudioContext;
	 	}
	 	
	 	if(act == 'play'){
	 		innerAudioContext.play();
	 		innerAudioContext.onPlay(()=>{
	 			that.currentPlayIndex = index;
	 			that.isPlay = true;
	 		});
	 	}else if(act == 'pause'){
	 		innerAudioContext.pause();
	 		that.isPlay = false;
	 	}
	 	
	 	innerAudioContext.onEnded(()=>{
	 		that.isPlay = false;
	 	});
	 },
      onqueryload(data) {
        this.exportExcelData = data
      },
      getWhere() {
        const query = this.query.trim()
        if (!query) {
          return ''
        }
        const queryRe = new RegExp(query, 'i')
        return dbSearchFields.map(name => queryRe + '.test(' + name + ')').join(' || ')
      },
      search() {
        const newWhere = this.getWhere()
        this.where = newWhere
        this.$nextTick(() => {
          this.loadData()
        })
      },
      loadData(clear = true) {
        this.$refs.udb.loadData({
          clear
        })
      },
      onPageChanged(e) {
        this.selectedIndexs.length = 0
        this.$refs.table.clearSelection()
        this.$refs.udb.loadData({
          current: e.current
        })
      },
      navigateTo(url, clear) {
        // clear 表示刷新列表时是否清除页码，true 表示刷新并回到列表第 1 页，默认为 true
        uni.navigateTo({
          url,
          events: {
            refreshData: () => {
              this.loadData(clear)
            }
          }
        })
      },
      // 多选处理
      selectedItems() {
        var dataList = this.$refs.udb.dataList
        return this.selectedIndexs.map(i => dataList[i]._id)
      },
      // 批量删除
      delTable() {
        this.$refs.udb.remove(this.selectedItems(), {
          success:(res) => {
            this.$refs.table.clearSelection()
          }
        })
      },
      // 多选
      selectionChange(e) {
        this.selectedIndexs = e.detail.index
      },
      confirmDelete(id) {
        this.$refs.udb.remove(id, {
          success:(res) => {
            this.$refs.table.clearSelection()
          }
        })
      },
      sortChange(e, name) {
        this.orderByFieldName = name;
        if (e.order) {
          this.orderby = name + ' ' + orderByMapping[e.order]
        } else {
          this.orderby = ''
        }
        this.$refs.table.clearSelection()
        this.$nextTick(() => {
          this.$refs.udb.loadData()
        })
      },
      filterChange(e, name) {
        this._filter[name] = {
          type: e.filterType,
          value: e.filter
        }
        let newWhere = filterToWhere(this._filter, db.command)
        if (Object.keys(newWhere).length) {
          this.where = newWhere
        } else {
          this.where = ''
        }
        this.$nextTick(() => {
          this.$refs.udb.loadData()
        })
      }
    }
  }
</script>

<style>
</style>
